Processing copper-nickel matte

Details Processing copper-nickel matte Processing copper-nickel matte

1982-08-26

1984-08-28

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

75101R, 75109, 75115, 75117, 75119, 75 74, C25C 112

Patent

active

044683022

ABSTRACT:
Feed material, such as matte, containing nickel and copper values and sulfur, is leached with an acidic copper sulfate solution to dissolve nickel, cobalt and other metal values and to cement copper from solution. The leach residue is roasted, and a selected quantity of copper is leached from the resulting calcine with sulfuric acid to form a copper sulfate electrolyte. The rest of the calcine is smelted to form copper-nickel anodes which are electrorefined in the copper sulfate electrolyte, thereby producing a cathodic copper deposit and a nickel-enriched, copper sulfate electrolyte which is recycled for leaching additional feed material.

REFERENCES:
patent: 814049 (1906-03-01), Johnson
patent: 882075 (1908-03-01), Neil
patent: 1844937 (1932-02-01), Hybinette
patent: 3741752 (1973-06-01), Evans et al.
patent: 4093526 (1978-06-01), Blanco et al.
patent: 4256553 (1981-03-01), Baczek et al.

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